<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<form action="/login" method="post">
    <input type="text" name="username" placeholder="账号"><br/>
    <input type="text" name="password" placeholder="密码"><br/>
    <input type="submit" value="登录">
</form>

</body>
</html>